Vehicle thermal management system
By employing a combination of refrigerant circuit and control unit in the electric vehicle thermal management system, independent temperature adjustment of the battery and drive unit is achieved, solving the problem of reduced heat dissipation capacity of the radiator caused by high battery heat generation and ensuring the thermal management effect of the drive unit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MAZDA MOTOR CORP
- Filing Date
- 2025-12-31
- Publication Date
- 2026-07-17
AI Technical Summary
In the thermal management system of electric vehicles, the high heat generation of the battery leads to an increase in the heat absorbed by the refrigerant in the cooling cycle, and an increase in the heat dissipation of the outdoor condenser. This may reduce the heat dissipation capacity of the radiator and affect the thermal management of the drive unit.
The system employs a refrigerant circuit, a first circuit, a second circuit, a third circuit, and a fourth circuit, which are connected and switched by a control unit to achieve independent temperature adjustment of the battery and drive unit, and reduces heat release from the outdoor condenser through heat absorption suppression control.
It effectively suppresses the absorption of waste heat from the outdoor condenser by the radiator, ensuring proper thermal management of the drive unit and preventing a reduction in heat dissipation capacity.
Smart Images
Figure CN122402168A_ABST